2015
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
2275905 |
2424 |
- |
2436 |
= |
-12 |
* |
(195 |
/ |
608)
|
= |
-3.84868421 |
| 4 |
2275906 |
2461 |
- |
2485 |
= |
-24 |
* |
(178 |
/ |
608)
|
= |
-7.02631577 |
| 5 |
2275909 |
2485 |
- |
2528 |
= |
-43 |
* |
(235 |
/ |
608)
|
= |
-16.62006575 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Zamorano Elementary
|
-27 |
2016
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
69777 |
2428 |
- |
2436 |
= |
-8 |
* |
(179 |
/ |
543)
|
= |
-2.63720074 |
| 4 |
69780 |
2454 |
- |
2485 |
= |
-31 |
* |
(186 |
/ |
543)
|
= |
-10.61878452 |
| 5 |
69781 |
2506 |
- |
2528 |
= |
-22 |
* |
(178 |
/ |
543)
|
= |
-7.21178636 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Zamorano Elementary
|
-20 |
2017
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
71610 |
2439 |
- |
2436 |
= |
3 |
* |
(201 |
/ |
550)
|
= |
1.09636364 |
| 4 |
71613 |
2473 |
- |
2485 |
= |
-12 |
* |
(181 |
/ |
550)
|
= |
-3.94909091 |
| 5 |
71615 |
2508 |
- |
2528 |
= |
-20 |
* |
(168 |
/ |
550)
|
= |
-6.1090909 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Zamorano Elementary
|
-9 |
2018
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
71755 |
2437 |
- |
2436 |
= |
1 |
* |
(179 |
/ |
531)
|
= |
0.33709981 |
| 4 |
71757 |
2481 |
- |
2485 |
= |
-4 |
* |
(191 |
/ |
531)
|
= |
-1.43879472 |
| 5 |
71759 |
2519 |
- |
2528 |
= |
-9 |
* |
(161 |
/ |
531)
|
= |
-2.72881355 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Zamorano Elementary
|
-4 |
2019
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
72241 |
2444 |
- |
2436 |
= |
8 |
* |
(161 |
/ |
515)
|
= |
2.50097087 |
| 4 |
72242 |
2473 |
- |
2485 |
= |
-12 |
* |
(164 |
/ |
515)
|
= |
-3.82135921 |
| 5 |
72243 |
2517 |
- |
2528 |
= |
-11 |
* |
(190 |
/ |
515)
|
= |
-4.05825242 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Zamorano Elementary
|
-5 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-27
|
-20
|
-9
|
-4
|
-5
|
-65.0 |
-13.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 17.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -43.0
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
